Hydrocracking method

A hydrocracking and catalyst technology, applied in chemical instruments and methods, hydrocarbon oil cracking, molecular sieve catalysts, etc., can solve the problem that the freezing point, density, distillation range, nitrogen content and other indicators of jet fuel have not been significantly improved, and the output cannot meet market demand , reduce the mercaptan sulfur content of aviation fuel products, and achieve good cracking activity and product selectivity, a high proportion of mesopores, and a good pore size distribution range
CN107345155AActive Publication Date: 2017-11-14CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2017-11-14

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Abstract

The invention discloses a hydrocracking method which comprises the following steps that a straight-run diesel oil raw material is in contact with a hydrocracking catalyst to carry out hydrocracking reaction, and an obtained hydrocracking product is separated to obtain heavy naphtha, diesel oil, a jet fuel and hydrogenation tail oil, wherein the used hydrocracking catalyst adopts a modified Y-shaped molecular sieve, amorphous silica-alumina and aluminum oxide as carriers, and the modified Y-shaped molecular sieve is an Y-shaped molecular sieve which is rich in meso pores and is concentrated in effective pore size distribution. The hydrocracking method is particularly suitable for a hydrocracking technology for carrying out hydro-conversion on straight-run diesel oil to produce the jet fuel, and has very high catalytic activity and aviation fuel product yield and the quality of a product is improved.
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Description

technical field

[0001] The invention relates to a hydrocracking method, in particular to a hydrocracking method for converting straight-run diesel to produce jet fuel (also known as jet fuel). Background technique

[0002] With the continuous expansion of the international air transport industry, the global demand for aviation fuel is increasing year by year, with an annual growth rate of about 5.0%, which is much higher than the annual growth rate of gasoline and diesel of 1.0% to 1.5%, which has greatly driven the global Demand for high-quality aviation fuel products in the oil market. In 2014, China's domestic air transport industry showed a good momentum of development. Against the backdrop of an overall slowdown in demand growth in the refined oil market, the aviation fuel market still maintained a booming supply and demand and a high-speed growth trend. According to data from the National Bureau of Statistics, China's kerosene consumption in 2014 was 23.55 million ton...

Claims

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